SiO_2/聚碳酸酯纳米相复合材料的制备与性能  

THE PREPARATION AND PROPERTIES OF THE SILICA/POLYCARBONATE NANOCOMPOSITE MATERIALS

作　　者：周重光[1] 李桂芝[1] 宋洁 

机构地区：[1]山东大学化学系,山东济南250100

出　　处：《高分子材料科学与工程》2000年第2期109-111,共3页Polymer Materials Science & Engineering

摘　　要：通过溶胶 -凝胶过程制备了 Si O2 / PC复合材料 ,透射电镜分析表明 ,Si O2 / PC在 1 / 9到 2 .5/ 7.5范围内 ,Si O2形成 3 0 0～ 4 0 0 nm的颗粒分散在 PC连续相中。热失重分析表明 ,材料的热稳定性随 Si O2 含量的增加而提高。扭辫分析表明 ,材料的玻璃化转变温度比 PC提高 2 0℃以上。The silica/polycarbonate nanocomposite materials with different amount of silica were prepared by sol gel process. The structure and properties of the composites were studied by FT IR spectroscopy, TEM, TGA and the torsional braid analysis(TBA). The results show that, the silica particles form nanometer microphase with the diameter from 300 to 400 nm disperses in the polycarbonate matrix, the thermal stability of the nanocomposites raises according to the increasing of silica amount, and the glass transition temperature raises more than 20 ℃.

关 键 词：纳米相 复合材料 二氧化硅 聚碳酸酯 

分 类 号：TB332.03[一般工业技术—材料科学与工程] TQ316.62[化学工程—高聚物工业]